source: doc/theses/jiada_liang_MMath/test1.cc

#include <iostream>
using namespace std;
void fred() {
}

int main() {
        enum class E { A, B, C };
        enum W { K, J, L };
        char www[L];
        int i;
//      i = E::A; i = K;
        E e;
//      e = 42;
        enum class CCC : char { A = 'a', B, C };
        CCC c;
//      char ch = E::A;
//      c = 'z';
        enum class RGB : long { Red, Green, Blue };
        enum class rgb : char { Red = 'r', Green = 'g', Blue = 'b' };
        enum class srgb : signed char { Red = -1, Green = 0, Blue = 1 };
        RGB colour1 = RGB::Red;
        rgb colour2 = rgb::Red;
        srgb colour3 = srgb::Red;
//      int s = E::A + E::A;
        if ( rgb::Red == rgb::Blue ) cout << "FRED" << endl;
        if ( rgb::Red == rgb::Green ) cout << "FRED0" << endl;
        if ( rgb::Red == rgb::Red ) cout << "FRED1" << endl;
        cout << (int)rgb::Red << endl;
        switch ( colour2 ) {
          case rgb::Red: ;
          case rgb::Green: ;
          case rgb::Blue: ;
        }
        for ( int i = rgb::Red; i < rgb::Blue; i += 1 ) {}
}